The superb Heeresgeschichtliches Museum is housed in the Arsenal, a large neo-Byzantine barracks and munitions depot.
Spread over two floors, the museum works its way from the Thirty Years’ War (1618–48) to WWII, taking in the Hungarian Uprising and the Austro-Prussian War (ending in 1866), the Napoleonic and Turkish Wars, and WWI. Highlights on the 1st floor include the Great Seal of Mustafa Pasha, which fell to Prince Eugene of Savoy in the Battle of Zenta in 1697.
On the ground floor, the room on the assassination of Archduke Franz Ferdinand in Sarajevo in 1914 – which set off a chain of events culminating in the start of WWI – steals the show. The car he was shot in (complete with bullet holes), the sofa he bled to death on and his rather grisly blood-stained coat are on show. The eastern wing covers the republic years after WWI up until the Anschluss in 1938; the excellent displays include propaganda posters and Nazi paraphernalia, plus video footage of Hitler hypnotising the masses.